Imikhiqizo ye-Hydroxypropyl Methyl Cellulose isetshenziswa kakhulu endaweni yokumiswa kwe-polymerization ye-vinyl chloride e-China.Ekumisweni kwe-polymerization ye-vinyl chloride, uhlelo oluhlakaziwe lunomthelela oqondile kumkhiqizo, i-PVC resin, kanye nekhwalithi yokucubungula kwayo nemikhiqizo.IHydroxypropylMethylCellulose isiza ukuthuthukisa ukuzinza okushisayo kwe-resin nokulawula ukusatshalaliswa kosayizi wezinhlayiyana..I-PVC resin eyenziwe ngekhwalithi ephezulu ye-HydroxypropylMethylCellulose ayigcini nje ngokuqinisekisa umugqa wokusebenza ngezindinganiso zamazwe ngamazwe, kodwa futhi ingaba nezakhiwo ezibonakalayo ezibonakalayo ezinhle, izakhiwo ezinhle kakhulu zezinhlayiya kanye nokuziphatha okuhle kakhulu okuncibilika kwe-rheological.
Ekukhiqizeni ama-synthetic resins, njenge-polyvinyl chloride, i-polyvinylidene chloride, namanye ama-copolymers, i-suspension polymerization yiyona esetshenziswa kakhulu futhi kufanele ibe ama-hydrophobic monomers angaguquki amiswe emanzini.Njengama-polymers ancibilika emanzini, umkhiqizo we-HydroxypropylMethylCellulose unomsebenzi omuhle kakhulu wangaphezulu futhi usebenza njengama-ejenti e-colloidal avikelayo.IHydroxypropylMethylCellulosecan ivimbela ngempumelelo izinhlayiya ze-polymeric ekukhiqizeni nasekuhlanganiseni.Ngaphezu kwalokho, nakuba i-HydroxypropylMethylCelluloseis i-polymer encibilikayo emanzini, ingancibilika kancane kuma-hydrophobic monomers futhi ingakhuphula i-monomer porosity yokukhiqizwa kwezinhlayiya ze-polymeric.
Ngaphezu kwalokho, ucwaningo luye lwabonisa ukuthi ohlelweni lokukhiqiza lwe-PVC, amabhizinisi ahlukene asebenzisa uhlelo oluhlukene oluhlakazekile, ngakho-ke izakhiwo zangaphandle zokugqoka ze-PVC ezikhiqizwayo nazo zihlukile, futhi ngaleyo ndlela i-HydroxypropylMethylCellulose ingathinta ukusebenza kokucubungula kwama-resin e-PVC.Kuhlelo lwe-ejenti ehlanganisiwe ehlakazayo, i-resin ye-PVC yokumiswa elungiselelwe kusukela ku-ejenti ehlakazayo eyinhlanganisela ye-polyvinyl alcohol (PVA) ene-alcoholsis ehlukene namadigri e-polymerization kanye ne-hydroxypropyl methyl cellulose (HPMC) ingaba nemiphumela ehlukile ekusebenzeni kokucubungula.Ukuhlolwa kubonise ukuthi inhlanganisela ye-HydroxypropylMethylCellulose kanye ne-KP-08/KZ-04 ene-alcoholsis degree engu-68% -75% ingcono futhi inenzuzo ku-porosity ye-resin kanye nokumuncwa kwama-plasticizers.
Isikhathi sokuthumela: Apr-01-2022